ZERUST® ZERION® TR-70, TR-110, TR-170
ZERUST® Zerion® TR is a versatile corrosion inhibitor formulation specifically designed to protect ferrous metals in aggressive environments subject to seawater ingress, moisture accumulation, or water intrusion. It combines Vapor Corrosion Inhibitors (VCIs) to protect air-space voids and exposed surfaces, and Soluble Corrosion Inhibitors (SCIs) to mitigate corrosion in areas exposed to
moisture or water.
ZERUST® Zerion® TR series (TR-70, TR-110, TR-170) is optimized for use based on the maximum operating temperature of the asset. These products provide long-term corrosion protection for carbon steel, stainless steel, and super duplex stainless steel.
TYPICAL APPLICATIONS
Recommended uses for Zerion® TR corrosion inhibitors include:
• Offshore platform trunnions
• Permanent or physical dead-legs in piping/tubing systems
• Temporary dead-legs (mothballed or out-of-service systems)
• Pipe supports
KEY ADVANTAGES
- Provides corrosion protection against seawater ingress and residual salt accumulation in trunnions.
- Effective on multiple substrates: carbon steel, stainless steel, and super duplex stainless steel.
- Combines both VCI and SCI technologies for comprehensive protection.
- Protects welded joints, crevices, coating holidays, and other vulnerable areas.
- Demonstrated ability to mitigate corrosion under intermittent seawater exposure.
- Easy installation through standard vent and drain holes, with auger feeder options for larger volumes.
Application Guidelines
Trunnion Preparation
- Ensure each trunnion has two access points:
a. Vent hole
b. Drain hole - Inspect the trunnion and identify the existing vent hole.
a. Typical vent hole size: 12-13 mm (½”) - Select a location for the drain hole.
a. Drill at the lowest point of the trunnion
b. Thread the drain hole
c. Typical drain hole size: 12-13 mm (½”) - Clean the trunnion interior thoroughly by flushing with
compressed air.
Inhibitor Installation
- Install a plug into the drain hole.
- Calculate the required inhibitor volume for the trunnion.
- Target fill volume: 25% of the trunnion’s internal capacity.
- Measure the inhibitor using a calibrated beaker.
- Insert the tubing from the funnel/tubing assembly into the vent hole.
- Pour the inhibitor powder into the funnel to the required volume.
- Seal the system by installing a plug into the vent hole.
Note: For trunnions requiring 1 liter or more of inhibitor, the use of an auger feeder is recommended.
Typical Properties
- Appearance: White
- Substrate: Ferrous
- pH: 9 - 9.5 (1% in water)
Typical values are not meant to be a specification.
Availability
Contact a ZERUST® representative for ordering information.
ZERUST® Zerion® TR-70
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Product Number: 460-F-00019PL
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Unit of Measure: 4.4 lbs (2 kg) pail
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Application: For assets operating from ambient temperature up to 70°C
ZERUST® Zerion® TR-110
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Product Number: 460-F-00020PL
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Unit of Measure: 4.4 lbs (2 kg) pail
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Application: For assets operating from 70°C to 110°C
ZERUST® Zerion® TR-170
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Product Number: 460-F-00021PL
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Unit of Measure: 4.4 lbs (2 kg) pail
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Application: For assets operating from 110°C to 170°C
Product sold in US customary units. Metric units approximate.
Storage
Store in original packaging in a dry, well-ventilated area at room temperature; keep tightly closed for a shelf life of 36 months, unopened.
